adware $038F36F8.t$m

The last couple times ZA ran a scan it has come back with &quot;not-a-virusAdWare.Win32.Casino.w&quot;
The path is:C:\WINNT\TEMP\$038F36F8.t$m.
I've tried to delete and repair, neither would work, shows error both times. When you go to status, it says &quot;no treatment is available for this item. When you go to what to do next, there is no help there. It seems that once you try a treatment you can't try anything else until you rerun the scan again.
How do I get rid of this?
Thanks